/*
 * Copyright (c) 2012, Metron, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of Metron, Inc. nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL METRON, INC. BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package com.metsci.glimpse.painter.adapter;

import javax.media.opengl.GLContext;

import com.metsci.glimpse.context.GlimpseBounds;
import com.metsci.glimpse.context.GlimpseContext;
import com.metsci.glimpse.gl.GLSimpleListenerAbstract;
import com.metsci.glimpse.painter.base.GlimpsePainter;
import com.metsci.glimpse.support.settings.LookAndFeel;

/**
 * An adapter wrapper class which allows a util.graphics.gl.GLSimpleListenerAbstract
 * listener to be used as a GlimpsePainter.
 *
 * @author ulman
 */
public class GLSimpleListenerPainter implements GlimpsePainter
{
    private GLSimpleListenerAbstract listener;

    private boolean init = false;
    private boolean dispose = false;

    private GlimpseBounds lastBounds;

    public GLSimpleListenerPainter( GLSimpleListenerAbstract listener )
    {
        this.listener = listener;
    }

    @Override
    public void paintTo( GlimpseContext context )
    {
        GLContext glContext = context.getGLContext( );

        if ( !init )
        {
            init = true;
            listener.init( glContext );
        }

        GlimpseBounds currentBounds = context.getTargetStack( ).getBounds( );

        if ( !currentBounds.equals( lastBounds ) )
        {
            listener.reshape( glContext, currentBounds.getX( ), currentBounds.getY( ), currentBounds.getWidth( ), currentBounds.getHeight( ) );
        }

        lastBounds = currentBounds;

        listener.display( glContext );
    }

    @Override
    public void dispose( GlimpseContext context )
    {
        if ( !dispose )
        {
            dispose = true;
            listener.dispose( context.getGLContext( ) );
        }
    }

    @Override
    public boolean isDisposed( )
    {
        return dispose;
    }

    @Override
    public void setLookAndFeel( LookAndFeel laf )
    {
        // do nothing
    }
}
